I also have a telescope, when I bought it I was a really noob at photography so I had only a point and shotshoot and in order to take pictures of the moon what I bought was an adapter that could hold the camera against the lens of the telescope. Examples here: Moon 1, Moon 2.
I've recently looked into this matter more seriously and the solution that I found is to buy a piece called "T-adapter", so instead of putting a lens into the telescope one fits this adapter, which should be attached to the camera as a lens.